Showers and Thunderstorms this Weekend.

The weather pattern has changed, and the cold air has moved off to the east. A series of disturbances will develop over the plains, and move northeast during the weekend. The winds have become southerly, and the Gulf of Mexico is opening up. The skies are cloudy, and the first rounds of showers have been light with rain falling into the retreating dry air at the surface with most of the rain evaporating. The atmosphere will become progressively more humid as the flow continues out of the Gulf overnight. There could be some scattered showers this evening, and possibly a thunderstorm later tonight. It will be much milder with an overnight low in the low 50's with southerly winds at 12 to 22 mph.  A warm front is approaching from the southwest tonight.  As the front gets closer chances of showers and thunderstorms will increase.  There is a low risk potential of a severe thunderstorm associated with the passage of the front and the associated disturbance.  The front will be to northeast of the Stateline by daybreak stretching from extreme eastern Wisconsin southeast across southern Lake Michigan into northern Indiana.  Showers thunderstorms could break out at any time in the warm, moist, unstable air mass.  It will be cloudy to mostly cloudy with a southerly wind of 10 to 20 mph with gusts to 25 mph in the afternoon.  The high temperature on Saturday will be around 73 degrees.  There will be a strong southerly wind on Saturday night and Sunday.  Heavy thunderstorms are possible on Saturday night. The low will be a very mild 61 degrees.  On Sunday the temperature is expected to soar to around 78 degrees.  Showers and storms are possible in the morning.   A squall line is expected to develop during the afternoon out ahead of an advancing cold front, and move across the Stateline later in the afternoon or evening.